I assume this is a 10-year green card and now it's close to the end of the 10 years? And I also assume that you meant "I am a citizen's spouse" when you wrote "I am a citizen spouse", in other words you're the spouse of a citizen, you're not a citizen yourself.
Even if you apply for citizenship you'll still need to renew the card, because it's less than 6 months before expiration, and they expect you to renew the card unless you applied for citizenship when there was more than 6 months remaining on the green card.
Whether you apply for citizenship is a decision for you to make based on the benefits and consequences to you ... would you lose your original citizenship or any other rights in your original country if you become a US citizen? Are you prepared to serve jury duty at any random time, which is an obligation of citizenship?
Last edited by Jackolantern; 2nd January 2012 at 01:58 PM.
PD: Jan 2003 (EB3 rest of world)
I-485 Approved: July 2007
I am a layman, not a lawyer. What I write here is not official or professional legal advice. In addition, my answers on this forum are specific to the scenarios discussed in each thread and should not be generalized to other situations.